* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --primary: #6c63ff;
    --primary-dark: #4a42d4;
    --secondary: #ff6584;
    --accent: #00d4aa;
    --bg: #f8f9fc;
    --bg-card: #ffffff;
    --text: #2d3436;
    --text-light: #636e72;
    --shadow: 0 8px 32px rgba(0,0,0,0.08);
    --radius: 20px;
    --glass: rgba(255,255,255,0.7);
    --gradient: linear-gradient(135deg, #6c63ff, #ff6584);
    --header-bg: rgba(255,255,255,0.9);
    --footer-bg: #1a1a2e;
    --footer-text: #dfe6e9;
}
body.dark-mode {
    --bg: #0f0f23;
    --bg-card: #1a1a2e;
    --text: #dfe6e9;
    --text-light: #b2bec3;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --glass: rgba(26,26,46,0.8);
    --header-bg: rgba(15,15,35,0.9);
    --footer-bg: #0a0a1a;
}
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}
a {
    color: var(--primary);
    text-decoration: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(108,99,255,0.1);
    transition: background 0.3s;
}
header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
}
.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 28px;
}
nav ul li a {
    font-weight: 600;
    color: var(--text);
    transition: color 0.2s;
    position: relative;
}
nav ul li a:hover, nav ul li a.active {
    color: var(--primary);
}
nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s;
}
nav ul li a:hover::after, nav ul li a.active::after {
    width: 100%;
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text);
    cursor: pointer;
}
.dark-toggle {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text);
    padding: 4px 8px;
    border-radius: 8px;
    transition: background 0.2s;
}
.dark-toggle:hover {
    background: rgba(108,99,255,0.1);
}
.hero {
    padding: 140px 0 80px;
    background: var(--gradient);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
    0% { transform: translate(0,0); }
    100% { transform: translate(20px,20px); }
}
.hero .container {
    position: relative;
    z-index: 1;
}
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}
.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto 32px;
}
.hero .btn-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}
.btn-primary {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border-color: #fff;
}
.btn-outline:hover {
    background: #fff;
    color: var(--primary);
}
section {
    padding: 80px 0;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-sub {
    text-align: center;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 48px;
    font-size: 1.05rem;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 24px;
    box-shadow: var(--shadow);
    transition: all 0.4s;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(108,99,255,0.05);
}
.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(108,99,255,0.15);
}
.card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
}
.card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.card p {
    color: var(--text-light);
    font-size: 0.95rem;
}
.brand-intro {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}
.brand-intro h2 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}
.brand-intro p {
    color: var(--text-light);
    margin-bottom: 12px;
}
.timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}
.timeline-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.timeline-year {
    font-weight: 800;
    color: var(--primary);
    min-width: 80px;
    font-size: 1.1rem;
}
.timeline-content {
    background: var(--bg-card);
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex: 1;
}
.banner-carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    height: 400px;
}
.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s;
    padding: 40px;
    text-align: center;
}
.banner-slide.active {
    opacity: 1;
    position: relative;
}
.banner-slide h3 {
    font-size: 2rem;
    margin-bottom: 12px;
}
.banner-slide p {
    color: var(--text-light);
    max-width: 500px;
}
.banner-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}
.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(108,99,255,0.3);
    cursor: pointer;
    transition: background 0.3s;
    border: none;
}
.banner-dot.active {
    background: var(--primary);
}
.faq-item {
    background: var(--bg-card);
    border-radius: 12px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}
.faq-question {
    padding: 18px 24px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}
.faq-question:hover {
    background: rgba(108,99,255,0.05);
}
.faq-answer {
    padding: 0 24px 18px;
    color: var(--text-light);
    display: none;
}
.faq-answer.open {
    display: block;
}
.faq-arrow {
    transition: transform 0.3s;
}
.faq-arrow.open {
    transform: rotate(180deg);
}
.howto-steps {
    counter-reset: step;
}
.howto-step {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    background: var(--bg-card);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}
.howto-step::before {
    counter-increment: step;
    content: counter(step);
    background: var(--gradient);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    flex-shrink: 0;
}
.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.news-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}
.news-card:hover {
    transform: translateY(-4px);
}
.news-card .date {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 8px;
}
.news-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}
.news-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 12px;
}
.news-card .read-more {
    font-weight: 700;
    color: var(--primary);
}
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.contact-info div {
    text-align: center;
}
.contact-info h4 {
    margin-bottom: 8px;
    color: var(--primary);
}
.contact-info p {
    color: var(--text-light);
}
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 48px 0 24px;
}
footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}
footer h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: #fff;
}
footer ul {
    list-style: none;
}
footer ul li {
    margin-bottom: 8px;
}
footer ul li a {
    color: var(--footer-text);
    transition: color 0.2s;
}
footer ul li a:hover {
    color: var(--primary);
}
.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 32px;
    font-size: 0.9rem;
}
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(108,99,255,0.4);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s;
    z-index: 999;
}
.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-4px);
}
.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.7s ease;
}
.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}
.stat-number {
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}
.partner-item {
    background: var(--bg-card);
    padding: 16px 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    font-weight: 600;
}
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    nav ul {
        display: none;
        flex-direction: column;
        background: var(--bg-card);
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        padding: 20px;
        box-shadow: var(--shadow);
        border-radius: 0 0 20px 20px;
    }
    nav ul.open {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
    .banner-carousel {
        height: 300px;
    }
    .banner-slide h3 {
        font-size: 1.5rem;
    }
    .brand-intro {
        padding: 24px;
    }
}
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}